diff mbox series

[23/76] wifi: nl80211: acquire wdev mutex for dump_survey

Message ID 20220713114425.144225d04e6e.I8aec1b25f42c4977ab5f4e4a0286eba551d3e13f@changeid (mailing list archive)
State Accepted
Delegated to: Johannes Berg
Headers show
Series wifi: more MLO work | expand

Commit Message

Johannes Berg July 13, 2022, 9:44 a.m. UTC 
From: Johannes Berg <johannes.berg@intel.com>

At least the quantenna driver calls wdev_chandef() here
which now requires the lock, so acquire it.

Fixes: 7b0a0e3c3a88 ("wifi: cfg80211: do some rework towards MLO link APIs")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/wireless/nl80211.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index b50ba1803595..886d964242ae 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -10233,7 +10233,9 @@  static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
 	}
 
 	while (1) {
+		wdev_lock(wdev);
 		res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
+		wdev_unlock(wdev);
 		if (res == -ENOENT)
 			break;
 		if (res)